Car-door lock.



W. J. BOHAN.

CAB noon LOCK.

APPLIGATIDN FILED 00T.17, 1912.

Patented May 5, 1914.

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CAR DOOR LOCK.

APPLICATION rum) 00111, 1912.

Patented May 5, 1914.

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WILLIAM J. BOHAN, OF ST. PAUL, MINNESOTA.

CAR DOOR LO CK.

Specification of Letters Patent.

Application filed October 17, 1912.

Patented May 5, 191 4.

Serial No. 726.396.

To all whom it may concern.

Be it known that I, \Vnmrnr J. Bonax, a citizen of the United States, residing at St. Paul, in the county of Ramsey and State of ltlinnesotzr have invented certain new and useful Improvements in Car-Door Locks; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates particuhirly to locks for the sliding side doors of box cars, and

has for its object to provide means rendering it impossible to remove the lock elements by n'ianipulation with the bolts used to secure the same in working position.

Generally stated, the invention consists of the novel devices and combinations of devices hereinafter described and defined in the claims.

Locks of the character indicated usually comprise a pivoted lock piece on the car door, and a cooperating lock bracket on one of the door posts, and these are customarily secured to respective parts noted by means of nut-equipped bolts. \Vhen the door is locked, the car seal is customarily applied to secure the lock piece and bracket in in tier-locking engagement, and the seal when applied is intended to indicate that the lock has not been tampered with and that the door has not been opened. so as to permit of the removal of the goods from the car. However, it has been found to b a common practice of so-callcd box car thieves to leave the car seal intact and to have gained access to the or by removal of one or more of the bolts of the look. When this is done, the parts of the lock may be replaced so that an inspector finding the seal intact will usually pass the lock as in good condition, and it, therefore becomes extremely diiiicult to determine just where the lock was tampered with. Until the place where the car break ing has taken place can be determined, it is impossible to discover the pcrpetratrn's. As already indicated this invention provides means for protecting the lock securing bolts so that they cannot be removed or loosened from the exterior of the car.

In the accompanying drawings which illustrate the invention, like characters in dicate like parts throughout the several views.

spcct to Figs. 1 and 2; Fig. l is a side elcvatlon ot' the lock bracket re moved from the door post. some parts be ing broken away; Fig, ."i a section taken approximatelv on the line .1 on Fig. at. and showing also the door post in horizontal section; Fig. (3 is a horizontal se(- tion taken through a portion of the car door and showing the pivoted lock piece applied thereto; Fig. 7 is a detail in section on the line a a on Fig. (l; and Fig. 8 is an elevation looking at the inner face oi the pivoted lock piece,

The numeral 1 indicates a portion of one side of the car. the numeral the adjacent door post and the numeral 3 the sliding side door.

The numeral. l indicates a lock bracket which is rigidly bolted to the door post 2, and the numeral 5 indicates the pivoted lock piece which is pivotally applied to the door 3. The lock piece .7, at its free end, is provided with :1. laterally projecting lock flange (3 and channel 7 that are cngageable. respectively. with a lock channel 8 and lock rib 9 formed on the said lock bracket 4. The lock bracket i. and lock piece 5 are provided with perforated lugs 10 and 11. respectively, through which a car seal 12 is adapted to be applied, as shown in Fig. l, to thereby hold the said lock piece against pivotal movements in respect to the said lock bracket. Obviously, when the lock piece 5 is held against pivotal movements in respect to the lock bracket, the door 3 will be locked in a. closed position.

The lock piece 5 is pivotally connected to the door 3 by a nut-equipped bolt 13. the head of which is located at the outer side of the door. The said bolt is passed through a long sleeve-like hub 14, preferably cast integral with the lock piece 5, and the head of the said bolt is covered by an arched web 15 that completely covers the same. The insertion of the bolt into the sleeve-like hub it is made possible by a lateral entrance passage or slot: 16 cut in one side of the said sleeve and extended outward through one side of the inner portion of the lock piece (see particularly Fig. 7). The head of the bolt. when the bolt is alined with the axial passage 01 the sleeve 14 is pressed inward into a seat formed hack of a lock flange 17 which cuts oil access to the inner face of the bolt head and to the body of the bolt. The sleeve it is directly seated in the metal bushing" in which is set into and is extended through the door 3. The nut l3 of the bolt '1 clamps a washer 1 directly against the inner end of the sleevedike huh 14. Thus it will be seen that. when the bolt is applied, a just described, and as best shown in Figs. ti and it it will be impossible to cut oil the bolt head from the exterior of the car, or to otherwhe tamper with the outer end ol the bolt. Preferably the bolt 13 is provided with a square shank 13" which fits the square seat in the huh 14- and holds the said bolt against rotation in respect to the said sleeve. This saute priui-iple oi cmistructiou may he arried out in all of the bolts used to secure the lock bracket E- to the door post, but, as shown. it applied to only one oi the said bol twuit. to the bolt Ell, two of the bolts it being; also employed to secure the said racket to the rllill post. In this arrangement, the head of the bolt 20, which is at the out ide ol the car is covered and protected by an arch web or flange 22, shown as cast integral with the said bracket 4. To permit the bolt Lt to be applied to the base of the said hrarkeli the latter is provided with a lateral entrance passage 23 (see particularly t and It), and is provided with a rib it which prevents a chisel or other instrument tron: being driven between the bolt head and the base flange or web of the said bracket 4.

By the above described. simple expedieuts any desired number or all of the bolts used to secure the lock elements to the car body or door post and to the door may be secured in such way that their heads cannot be cut oft. This makes it absolutely necessary to break the car seal in order to open the car door.

lVhat I claim is:

1. The eoinbi nation with a car body and door, of a lock bracket and cooperating lock piece, bolls securing said bracket to the car body, said lock piece having a sleeve-like hub seated in said door, and a bolt seated in said sleeve'like huh and pivotally connecting said leek piece to said door, said hub having a lateral entrance passage in said bolt extcndii'lg from end to end thereof, and said lock piece having a web covering the head of said. bolt.

The combination with a car body and doon of a lock bracket and cooperating lock piece, bolts securing said bracket to the car body, said lock piece having a slcevediko huh seated in said doing and a bolt seat in the said sleeve-like huh and pivotally connecting said lock piece to said door, said hub having a lateral entrance passage for the said bolt and the said pivoted lock piece having a web covering the head of said bolt and having a guard rib or shoulder projecting outward beyond the inner face of the bolt head, substantially as described.

In testimony whereof l aliix my signature in presence of two witnesses.

lVILLIAM J. BOIIAN. Vitnesscs F. D. Mnncnan'r, HARRY D. KILoonn.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. C. 

